Hello
I understand that you’re trying to implement WPA3 on your Windows Server 2016 using Group Policy Objects (GPO). Unfortunately, based on the information I found, it appears that WPA3 configuration via GPO is not currently supported on Windows Server 2016.
However, you can try the following two options:
Upgrade to a newer version of Windows Server: It seems that the ability to create WPA3 settings via GPO is available in Windows Server 2022. However, even in this case, some users have reported issues when trying to view the GP report in the Group Policy Management Console.
Manual Configuration on Client Devices: If upgrading the server is not an option, you might consider manually configuring WPA3 on the client devices. For example, on Windows 10 devices, you can check if they support WPA3-Personal by running the command netsh wlan show drivers in the Command Prompt.